New game to get into

TL;DR:Been a gamer forever, Was playing league till recently and am looking for a new game to fall in love with, Be it every genre, The only thing I acutally care about is it having a big community, And that I wouldn't feel like im playing alone.

So hey guys, I'm a 19y old guy, In love with gaming since I was a child, Wether it was an old Nintendo Gameboy back at 2002, Maplestory and Runescape back at 2007, Or League of legends for the past 3-4 years, I've always been involved with gaming. I like to think that I tried most gaming possible, I'd a PS3 many years back, An XBOX 360 MW3 Edition, Was playing both online and Offline whilst it was being cracked. I played CS 1.6 for a long time when I was about 13, HNS, Competitive and just casually chilling. For the past few years i've been playing some games here and there, Tried out LOL, Overwatch, Hearthstone, Many MMORPGS, Mobas like DOTA 2, CS GO and many other games in between, But no matter what I kept being swiped into League of legends. Im a Plat 3 main, played on a few severvs, Had a few smurfs, Played on every every single role possible for about 3-5k games, if I conclude my ranked games on my main, And some of my more serious smurfs. Lately i've started to get more stressed and mad over the game, Not over the normal toxidity of the community (Those of you who played League before know what im talking about), I started the new season in a lower elo and cant climb anymore, Mostly because im too pissed (And my GF is, Too). I decided to finally delete League, Even though I think it's an absolute fun game, And that i'll definetly pick it up someday. Since I always loved gaming, I've been seraching for a new game to get into. I didnt enjoy WOW back when i tried it, Rift was kinda boring, When I play awsome games like Overwatch, CS:GO and Hearthstone I keep enjoying myself, But can't get the feeling I used to get playing League - Wanting the have 13 Matches a day, Going to sleep and keep doing it. I find myself bored and unwilling to play anymore after 2 games, Be it a win or a lose. This is where you guys come in (I know beat about the bush alot, And wrote alot of uninteresting things, I'll write a TL;DR for the lot of you that doesn't care), Im searching for a new game to get into, Doesnt matter on what platform, Doesn't matter on what genre, I don't care if I have to grind my way like Oldschool Runescape days or start my adventure climbing right away, Like COD. Im just looking for a new game to fall in love with. I've a nice PC, a New Nintendo XL, which has only 2 pokemon games (I do love it, But the games are mostly the same and you get the gest of it after around one or two of these). The only thing I really care about is the community, I don't like playing games that aren't that played, I love playing huge online games, Feeling i've somone to talk to and with about the game. I'll probaly get my GF into it eventually, But first i'd like to get to know the game better and start investing time in it. I've alot of time (around 2-3 months) before I get to the next part in my life (Am joining the army), And i'd like to spend it nicely! I'd appriciate any help I can get from you guys, For I wouldn't wanna stop participating in my old Gaming habbit, Much appriciated guys! Thanks!